diff --git a/.cspell.json b/.cspell.json
index e1e3f1ab..21af7f1b 100644
--- a/.cspell.json
+++ b/.cspell.json
@@ -265,6 +265,7 @@
     "VSCode"
   ],
   "words": [
+    "interp1d",
     "aabb",
     "aarch",
     "abspath",